https://scholars.lib.ntu.edu.tw/handle/123456789/445657
Title: | Structure effect of Si-based powder on cycle performance of lithium ion battery | Authors: | Shieh, D.T. Yang, M.H. Guo, Z.Z. Hsieh, P.S. Tsao, S. Lin, M.W. Liu, W.R. Wu, N.L. NAE-LIH WU |
Issue Date: | 2007 | Journal Volume: | 3 | Journal Issue: | 27 | Start page/Pages: | 3-13 | Source: | ECS Transactions | Abstract: | In this study, an inactive material (Ni) is introduced into Si for buffering the volume change causing by the lithium insertion and de-insertion. A porous structure is designed for further reducing of the volume change. The surface-porous structure SiNi powder is prepared by gas atomization method and wet-etching in an acidic solution, which shows positive effects on cycle performance, high capacity and the efficiency at the first cycle. Coated a carbon layer onto SiNi powders by CVD process can further improve the cycle performance by preventing structure collapse. copyright The Electrochemical Society. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/445657 | DOI: | 10.1149/1.2793573 | SDG/Keyword: | Ions; Nickel compounds; Porosity; Silicon; Silicon compounds; Wet etching; Acidic solutions; Cycle performance; Gas atomization method; High capacity; Lithium insertion; Porous structures; Structure effect; Volume change; Lithium-ion batteries |
Appears in Collections: | 化學工程學系 |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.